Porto to Treinta y Tres: time difference
Treinta y Tres is 3 h behind Porto. Live clocks for both, the working hours they share, and how each one sits against your own time.
−3 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Porto 19:11 7:11 PM Treinta y Tres 16:11 4:11 PM You –:–
19:11 7:11 PM
Western European Standard Time · UTC+0
☀️ 07:12 · 🌙 17:26
16:11 4:11 PM
Uruguay Standard Time · UTC-3
☀️ 05:35 · 🌙 19:09
·
−3 h
Treinta y Tres is 3 h behind Porto.
When you, Porto and Treinta y Tres are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇵🇹 Porto
0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM
🇺🇾 Treinta y Tres
21 9 PM 22 10 PM 23 11 PM 0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇵🇹 Porto | 🇺🇾 Treinta y Tres |
|---|---|---|
| Local time | 19:11 | 16:11 |
| Local date | Friday, November 6, 2026 | Friday, November 6, 2026 |
| Time zone | Western European Standard Time | Uruguay Standard Time |
| UTC offset | UTC+0 | UTC-3 |
| Offset from Porto | — | −3 h |
| IANA zone | Europe/Lisbon | America/Montevideo |
| Daylight saving | On standard time → UTC+1, Mar 28, 02:00 | Not observed |
| Sunrise | 07:12 | 05:35 |
| Sunset | 17:26 | 19:09 |
| Daylight | 10 h 14 min | 13 h 35 min |
| People on this clock | 231,828 | 32,259 |
Compare Porto with another city
More comparisons with Porto: the time zones next to it and the far side of the clock.
Big time differences
Porto and Treinta y Tres: common questions
How far behind Porto is Treinta y Tres?
Treinta y Tres is 3 hours behind Porto: UTC−3 against UTC+0.
What time is it in Treinta y Tres at the start of the working day in Porto?
The working day in Porto starts at 9:00 AM; in Treinta y Tres it is 6:00 AM at that moment.
What time is it in Treinta y Tres when it is 6:00 PM in Porto?
When it is 6:00 PM in Porto, it is 3:00 PM in Treinta y Tres.
Is there a time when both Porto and Treinta y Tres are at work?
Yes: from 12:00 PM to 6:00 PM in Porto (9:00 AM to 3:00 PM in Treinta y Tres), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Treinta y Tres compared with Porto?
The new day starts in Treinta y Tres later: until 3:00 AM in Porto, it is still the previous day there. From 9:00 PM in Treinta y Tres, Porto is already on the next day.
Does the time difference between Porto and Treinta y Tres change?
Yes. The clocks change only in Porto. From March 28, 2027, Treinta y Tres will be 4 hours behind Porto.
